Elasticsearch use – combined with MybatisPlus to use ES & es and MySQL data consistency & combined with RabbitMQ to achieve decoupling

Foreword This blog is a use case of elasticsearch, including using ES with MybatisPlus, how to ensure the data consistency between MySQL and es, and using RabbitMQ for decoupling and customizing the method of sending messages. The list of other related Elasticsearch articles is as follows: Installation and parameter settings of the Docker version of […]

Atomikos + MybatisPlus solve the problem of transaction consistency of multiple data sources

Multiple data source transactions In the development process of actual projects, we often encounter the use of two or more data sources in the same project or microservice. Since each data source needs to use a different transaction manager, and each transaction The manager manages different data sources. Each data source can only ensure transaction […]

Data mining and statistical analysis – T test, normality test and consistency test – code reproduction

The T-test is a statistical test used to determine whether there is a statistically significant difference in the means of two sample groups. The following is a detailed introduction to the T test: Definition: The T test is a parametric test based on the premise that the data approximates a normal distribution. It determines whether […]

Sentry: How to get stronger consistency from your data store

Translated from: How to Get Stronger Consistency Out of a Datastore Address: https://blog.sentry.io/2019/09/17/how-to-get-stronger-consistency-out-of-a-datastore Sentry’s primary job is to receive and parse user exception information. When a large number of user abnormal information is reported, Sentry’s traffic will reach its peak. At the same time, providing near real-time error tracking is helpful to users. There are […]

Springcloud3 no distributed transaction causing data inconsistency scenario simulation 1

One distributed transaction 1.1 Distributed transaction generation conditions Distributed transactions refer to transactions that are not generated under a single service or a single database architecture, such as: 1. Distributed transactions across data sources 2. Distributed transactions across services 3. Comprehensive situation Two Case Operations 2.1 Principle Structure The creation of orders, inventory deductions, and […]

Byte2face: How do you deal with data consistency in a distributed scenario?

Source: blog.csdn.net/A_D_H_E_R_E/article/details/132483843 The reason for this sharing How are distributed transactions currently solved? What solutions are there in the industry? Theoretical basis (premise for discussion) Industry solutions Scheme comparison How others do it alipay’s distributed transaction service DTS eBay local news form Various third-party payment callbacks how can we do it Reason for this sharing […]

(Advanced) Redis 7 Lecture 13 Data Double Write Consistency Canal Chapter

Interview questions Questions Answers How to ensure that after mysql changes, it will be synchronized to Redis immediately canal Introduction https://github.com/alibaba/canal/wikihttps://github.com/alibaba/canal/wiki Based on incremental log analysis of MySQL database, providing incremental data subscription and consumption Business Database mirroring Database real-time backup Multi-level index (sellers and buyers have separate indexes) search build Business cache refresh Important […]

Overleaf inserts pictures, quotes pictures, and solves the inconsistency between the icon title Fig and the article reference Figure

Table of Contents 1. General illustrations 2. Insert double column pictures 3 Insert sub-picture 4. Problems with citations Question 1: Only the picture serial number, such as “3”, appears in the pdf text reference. “Fig.3 or Figure.3” does not appear Question 2: The title quoted in the article is inconsistent with the title under the […]

springboot+canal+mysql+redis cache double write consistency

canal official website address: https://github.com/alibaba/canal/wiki/QuickStart Basically just follow the steps on the official website Preparation First, jdk must be installed on the server, because canal requires jdk to run. At the same time, the port corresponding to canal must be opened in the service, otherwise the connection cannot be made. For self-built MySQL, you need […]